Marks left on a race track measuring 400 meters indicate that the rear wheels (the traction wheels) of a car skidded the first 18 meters and slid with imminent movement during the remaining 382 m. The front wheels of the car barely peeled off the ground in the first 18, and for the rest of the race 75% of the car's weight rests on the rear wheels. If the speed is 58 km/ hr at the end of the first 18 and the kinetic friction coefficient is 80% of the static friction coefficients, determine the speed of the car at the end of the track of 400. Answer: 265 km/hr